Maintenance and upkeep of dry-type power transformers: a must read guide for users!

Dry type power transformers are a common type of power equipment with advantages such as small size, reliable operation, and easy maintenance. To ensure the normal operation of dry-type power transformers and extend their service life, the following is a user must read guide for the maintenance and upkeep of dry-type power transformers.

Regular appearance inspection: Regularly inspect the appearance of dry-type power transformers to ensure no damage, dirt, or other substances, especially the transformer casing, terminal box, insulation parts, etc.

Cleaning the transformer: It is very important to keep the transformer clean. The transformer casing and terminal box can be gently tapped or wiped with a clean soft cloth. Be careful not to use cleaning agents with chemical components.

Regular measurement of insulation resistance: Insulation resistance testing should be conducted on dry-type power transformers at regular intervals to ensure good insulation performance. Before testing, the input power of the transformer should be disconnected and the test results recorded.

Regular inspection of wiring and terminals: Check whether the wiring and terminals of the transformer are loose or oxidized. If any abnormal situations are found, they should be dealt with in a timely manner. You can use anhydrous ethanol to wipe the surface of the terminals to ensure good contact.

Reduce voltage and current fluctuations: Dry type power transformers are very sensitive to voltage and current fluctuations and should avoid sudden disconnection or connection of the power source as much as possible to avoid damage to the transformer.

Regular maintenance: According to the requirements of the transformer manufacturer, perform regular maintenance work. This includes cleaning the internal insulation, checking if the fan and air ducts are unobstructed, and replacing aged or faulty components.

Moisture-proof and dust-proof treatment: Dry type power transformers do not have natural moisture-proof and dust-proof performance like oil immersed transformers, so regular moisture-proof treatment is required. Desiccants or insulation materials can be used to keep the interior of the transformer dry.

Regular insulation oil testing: For dry-type power transformers with insulation oil, regular insulation oil testing should be conducted to determine whether their insulation performance meets the requirements. If the test results exceed the standard range, the insulation oil needs to be replaced in a timely manner.

Pay attention to safe operation: When carrying out maintenance and upkeep work, be sure to pay attention to safe operation. Avoid direct contact with high voltage parts, wear insulated gloves and glasses, use insulated tools, and do not operate in a charged state.

Emergency measures: If there is a malfunction or abnormal situation in the dry-type power transformer, it should be immediately stopped from use and professional assistance should be sought. Do not disassemble or repair the transformer on your own to avoid more serious accidents.

In short, dry-type power transformers are an important type of power equipment, and users should pay attention to regular maintenance and upkeep in their daily use. Only by doing a good job in maintenance can we ensure the normal operation of dry-type power transformers, reduce the possibility of faults, and extend their service life. I hope the above guidelines are helpful for users when maintaining and maintaining dry-type power transformers.